There is a constant ebb and flow in art historical reputations. The reputation of even the greatest figures like Picasso are in flux.

Andy Warhol defined Pop Art.

After pop art, graffiti is probably the biggest art movement in recent history to have such an impact on culture.

I could see the ebb and flow. It wasn't going to be like that forever.

Every flow has its ebb.

From 1940 to the present, the art world - and particularly Los Angeles - has undergone a transformation not unlike the Italian Renaissance.